| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Alternative Processes (Beyond the Beam)
|
| Presentation Title |
Mechanical Property and Characterization of Anodized AA6061 After Additive Friction Stir-deposition |
| Author(s) |
Ning Zhu, Dustin Z Avery, Brandon J Phillips, Ryan P Kinser, Paul G Allison, James B Jordon, Luke N Brewer |
| On-Site Speaker (Planned) |
Ning Zhu |
| Abstract Scope |
This presentation discusses the role of surface oxides on the mechanical properties of AA6061 produced by additive friction stir-deposition (AFS-D). One application of AFS-D is to recycle scrap aluminum material by using solid-state additive manufacturing to produce new components. A potential concern is the solid-state mixing of surface oxides on the feedstock material into the additively produced component. Will these oxides reduce the ductility or strength of the material? To address this question, we produced large builds of AA6061 through AFS-D using strips of material with controlled oxide thickness. Oxide coatings with 33μm and 67μm thickness were hard anodized on 9.5mm thick feedstock. Characterization through scanning electron microscopy revealed that above 95% of aluminum oxides with radius less than 5μm were evenly distributed in the build. The change in tensile behavior is now being addressed. The connection between surface oxide thickness, deposit microstructure, and resultant mechanical properties will be discussed. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |